Setting valueAxis for makit chart in XML view

Question

Dear Experts,
I am trying to set a valueAxis limit on value 0,5.
My XML looks like this. I couldnt add valueAxis in ma:Chart successfully.
<ma:Chart id="idChart" height="100%" width="100%" type="Line"
  rows="{/entries}" showRangeSelector="true" showTableView="false"
  showTotalValue="false">
  <ma:category>
  <ma:Category column="date" displayName="Date" />
  </ma:category>
  <ma:values>
  <ma:Value expression="value" displayName="Value" type="number"/>
  </ma:values>
  <ma:rows>
  <ma:Row>
  <ma:cells>
  <ma:Column name="date" value="{date}" />
  <ma:Column name="value" value="{value}"
  type="number" />
  </ma:cells>
  </ma:Row>
  </ma:rows>
  <ma:columns>
  <ma:Column name="date" value="{date}" />
  <ma:Column name="value" value="{value}" type="number"  />
  </ma:columns>
  </ma:Chart>
The error was: Uncaught Error: valueAxis property must be of type sap.makit.ValueAxis
Basically I cant create a new instance of ValueAxis in XML.
I tried in the controller js something like this:
var oChart = this.getView().byId("idChart");
oChart.valueAxis =  new sap.makit.ValueAxis({min : "0.5"});
This also didnt work.
So I  have two questions:
1.) How can I set valueAxis in XML view staticly?
2.) How can I set valueAxis in controller dynamicly according to the values I get from my json service.
Thanks for any help!
Regards,
Koray

Answer 1

Try doing,
oChart.setValueAxis(new sap.makit.ValueAxis({min : "0.5"}));